建立一个简单的web server

1. 导入http模块

   const http = require('http');
   

2. 创建server

   const server = http.createServer((req, res) => {
     res.end("Hello form the server!");
   });
   

3. 开启server

   server.listen(8000, "127.0.0.1", () => {
     console.log("Listening to requests on port 8000.");
   });